> ## Documentation Index
> Fetch the complete documentation index at: https://nicos.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Preconfigured hardware

<RequestExample>
  ```nix hosts-nixos/hetzner-server.nix theme={null}
  {hardware, ...}: {
    imports = [hardware.hetzner-x86];
    settings = {
      sshPublicKey = "ssh-ed25519 ...";
    };
  }
  ```
</RequestExample>

You can access the `hardware` special argument in the Nix modules of your
machines. This argument contains Nix modules that can be imported into your
machine configuration. Each module defines a set of opinionated defaults, such as
the file system layout, the bootloader, the kernel, the init system, etc.

When possible, the hardware modules also define a [disko](https://github.com/nix-community/disko) partitioning scheme, which can be used when installing the system using the [install](/commands/install) command which is a wrapper around [nixos-anywhere](https://github.com/nix-community/nixos-anywhere).

The available hardware modules differ depending on the host system, whether the machine is a NixOS machine.

You can find the list of the available modules in the [hardware modules reference](/reference/hardware).

{/* TODO Explain srvos, cloud-init, disko and nixos-anywhere */}